The investigations were carried out in daylight. The air bubble would not move if the investigations were done in the dark.

Explain why

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when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

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